Nexperia USA Inc. BAV23,235

Overview

BAV23,235 from Nexperia is a dual high-voltage switching diode pair in a single SOT143B surface-mount package, configured as two independent silicon switching diodes with isolated anodes and cathodes. It delivers 250 V repetitive peak reverse voltage (VRRM), ≤50 ns reverse recovery time (trr), and ≤2 pF junction capacitance per diode - enabling reliable high-speed switching in flyback snubbers, relay drivers, and HV logic interface circuits.

For engineers reviewing the BAV23,235 datasheet, BAV23,235 pinout, BAV23,235 application, or BAV23,235 equivalent, key selection criteria include verified dual-diode isolation, guaranteed trr ≤50 ns at IF = 10 mA/IR = 10 mA, VRRM = 250 V per diode, thermal resistance Rth(j-a) = 500 K/W on FR4, and SOT143B footprint compatibility with standard reflow profiles.

Technical Context

The BAV23,235 integrates two discrete high-voltage switching diodes in one monolithic SOT143B package, with fully independent terminals (A1/K1 and A2/K2) - no internal connection between diodes. Each diode is optimized for fast turn-off with low stored charge, supporting clean transitions in inductive load switching and HV signal clamping.

Its 250 V VRRM rating and 100 nA IR at VR = 200 V ensure stable blocking under transient overvoltage conditions, while the 2 pF Cd at VR = 0 V enables minimal capacitive loading in RF-coupled or timing-sensitive paths. Thermal design relies on Rth(j-sp) = 360 K/W to solder point for PCB-level power dissipation management.

Key Specifications

Pinout & Package

SOT143B plastic surface-mount package: 4-terminal, 1.9 mm lead pitch, 2.9 mm × 1.3 mm × 1.0 mm body, designed for automated placement and reflow soldering on FR4 PCBs with standard footprint (Fig. 8).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual high-voltage switching diode applications.

Compared with BAV21,215 and MMBD2837, the BAV23,235 uniquely provides 250 V VRRM with true dual-isolation in SOT143B - making it the only option among the three suitable for 200–250 V flyback snubbers requiring independent anode routing and sub-50 ns recovery.

Availability

BAV23,235 is available at Aetrix Electronics and suitable for relay driver circuits, flyback snubber networks, HV logic level translation, and signal clamping in industrial I/O - requiring stable component supply for long-lifecycle embedded control modules and factory automation hardware.

Supply support for BAV23,235 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on high-volume, high-reliability essential semiconductors - delivering discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

The BAV23,235 belongs to Nexperia's high-voltage switching diode product line, engineered specifically for robust performance in industrial power control, relay interfacing, and transient protection where speed, voltage margin, and thermal stability are critical.

FAQ

What is the maximum junction temperature for continuous operation of BAV23,235?

The absolute maximum junction temperature (Tj) is 150 °C. Continuous operation must maintain Tj ≤ 150 °C, calculated using Ptot = 250 mW, Rth(j-a) = 500 K/W, and ambient temperature. Derating begins above Tamb = 25 °C per Fig. 5 - at 100 °C ambient, max usable power drops to ~125 mW per diode.

Can BAV23,235 be used in automotive applications?

No - the BAV23,235 is explicitly marked as non-automotive qualified in the 2023 datasheet revision. It lacks AEC-Q101 qualification, automotive-grade screening, and extended temperature validation. For automotive use, Nexperia offers the BAV23-Q series with full AEC-Q101 compliance and -40 °C to +150 °C operation.

Is the SOT143B package lead-free and RoHS compliant?

Yes - the BAV23,235 uses a lead-free, halogen-free, RoHS-compliant SOT143B package. The device meets JEDEC J-STD-020 moisture sensitivity level (MSL) 1 and is rated for standard reflow profiles up to 260 °C peak temperature, as confirmed in the "Soldering" section (Fig. 8–9) of the official datasheet.

How is reverse recovery time (trr) tested for BAV23,235?

trr is measured per Fig. 6 in the datasheet: using a square-wave input with VR + IF×RS (RS = 50 Ω), IF = 10 mA, IR = 10 mA, IR(meas) = 1 mA, RL = 100 Ω, and Tamb = 25 °C. The time from 10% to 90% of reverse current decay defines trr, with guaranteed ≤50 ns for production units.